1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Inessa05 [86]
3 years ago
9

What is the solution of the following system

Mathematics
1 answer:
AleksAgata [21]3 years ago
4 0

Step-by-step explanation:

8x + 14y = 4 ...1

-6x - 7y = -10 ...2

...2 × 2 in 2 sides of the equation

-12x -14y = -20 ...3

...1 + ...3

8x + 14y +(-12x -14y) = 4 +(-20)

8x + 14y - 12x -14y = 4 - 20

-4x = -16

x = (-16)/(-4)

= 4

replace x in ...1 or ...2 you will reserve y value

and answer in the term of (x,y)

You might be interested in
Identify the level of measurement of the​ data, and explain what is wrong with the given calculation. In a​ survey, the favorite
Trava [24]

Answer:

The data are at the   <u>Nominal</u>   level of measurement.

The given calculation is wrong because average (mean) cannot be calculated for nominal level of measurement.

Step-by-step explanation:

The objective here is to Identify the level of measurement of the​ data, and explain what is wrong with the given calculation.

a)

The data are at the <u> Nominal  </u>  level of measurement due to the fact that it portrays the qualitative levels of naming and representing different hierarchies  from 100 basketball, 200 basketball, 300 football, 400 anything else

b) We are being informed that, the average​ (mean) is calculated for 597 respondents and the result is 256.1.

The given calculation is wrong because average (mean) cannot be calculated for nominal level of measurement. At nominal level this type of data set do not measure at all , it is not significant to compute their average​ (mean).

6 0
3 years ago
The back of Dante's property is a creek. Dante would like to enclose a rectangular area, using the creek as one side and fencing
Allushta [10]

The correct value is 720 ft of fencing.

Answer:

Max Area = 64800 sq.ft

Step-by-step explanation:

A square will always give us the maximum area.

Thus, one side would be;

720/4 = 180 feet

So, we want a square 180 ft by 180 ft

however, from the question, we are to use the creek as one side. So, we'll take the 180 ft that we don't need because of the creek and then add it to the opposite side to get 180 + 180 = 360 ft.

Thus,we now have a rectangle with dimensions: 180 ft by 360 ft

Area is given by;

area = length × width

Maximum Area = 180 × 360

Max Area = 64800 sq.ft

6 0
3 years ago
Which information is not necessary to solve this problem? WHO EVER GETS THIS FIRST IS BRAINLIEST
Ad libitum [116K]
So we need to now how many crates they sold, how many boxes are in a crate, and how much they sold the cates for. 

So we don't need A. we don't need to know how much is in the box, just how much money they made from the box.
4 0
3 years ago
What is 12 divided by 1 using long division
sergeinik [125]

Answer:

12

Step-by-step explanation:

12 divided by 1 using long division is 12. As long as a number is divided by 1 the number is the same as the dividends number.

7 0
3 years ago
Read 2 more answers
72 348 675 125 what is the value of the 2 in 72
Masja [62]
2 Billion Is The Value
4 0
3 years ago
Other questions:
  • The label on the cars antifreeze container claims to protect the car between -30C and 130C. To convert Celsius temperature to Fa
    12·2 answers
  • What is the surface area of the triangular prism?
    12·1 answer
  • Y=-3x+5 5x - 4y= -3 solvining systems of equations by substitution
    15·1 answer
  • What fraction of a ton is a pound?
    11·2 answers
  • 4.8 times what equals 1.2
    9·1 answer
  • Please help ( question 9)<br> tyyyyy
    6·1 answer
  • Directions: Describe each pair of ratio. Tell whether it is a proportion
    13·2 answers
  • Does anyone know how to do this?
    9·2 answers
  • In a survey of a community, it was found that 85% of the people like winter season and 65% like summer season. If none of them d
    14·1 answer
  • Solve the inequality 5z+8≥-7
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!